661409872

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{582227}}^1$

素因数の和:582306

約数の個数: 20

約数和(自身を含む): 1299532896

約数和(自身を除く): 638123024

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 582227, 1164454, 2328908, 4657816, 9315632, 41338117, 82676234, 165352468, 330704936, 661409872]

約数ペア:

[(1, 661409872), (2, 330704936), (4, 165352468), (8, 82676234), (16, 41338117), (71, 9315632), (142, 4657816), (284, 2328908), (568, 1164454), (1136, 582227)]